81258240

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{3023}}^1$

素因数の和:3054

約数の個数: 144

約数和(自身を含む): 296690688

約数和(自身を除く): 215432448

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3023, 3360, 3840, 4480, 5376, 6046, 6720, 8960, 9069, 12092, 13440, 15115, 18138, 21161, 24184, 26880, 30230, 36276, 42322, 45345, 48368, 60460, 63483, 72552, 84644, 90690, 96736, 105805, 120920, 126966, 145104, 169288, 181380, 193472, 211610, 241840, 253932, 290208, 317415, 338576, 362760, 386944, 423220, 483680, 507864, 580416, 634830, 677152, 725520, 773888, 846440, 967360, 1015728, 1160832, 1269660, 1354304, 1451040, 1692880, 1934720, 2031456, 2321664, 2539320, 2708608, 2902080, 3385760, 3869440, 4062912, 5078640, 5417216, 5804160, 6771520, 8125824, 10157280, 11608320, 13543040, 16251648, 20314560, 27086080, 40629120, 81258240]

約数ペア:

[(1, 81258240), (2, 40629120), (3, 27086080), (4, 20314560), (5, 16251648), (6, 13543040), (7, 11608320), (8, 10157280), (10, 8125824), (12, 6771520), (14, 5804160), (15, 5417216), (16, 5078640), (20, 4062912), (21, 3869440), (24, 3385760), (28, 2902080), (30, 2708608), (32, 2539320), (35, 2321664), (40, 2031456), (42, 1934720), (48, 1692880), (56, 1451040), (60, 1354304), (64, 1269660), (70, 1160832), (80, 1015728), (84, 967360), (96, 846440), (105, 773888), (112, 725520), (120, 677152), (128, 634830), (140, 580416), (160, 507864), (168, 483680), (192, 423220), (210, 386944), (224, 362760), (240, 338576), (256, 317415), (280, 290208), (320, 253932), (336, 241840), (384, 211610), (420, 193472), (448, 181380), (480, 169288), (560, 145104), (640, 126966), (672, 120920), (768, 105805), (840, 96736), (896, 90690), (960, 84644), (1120, 72552), (1280, 63483), (1344, 60460), (1680, 48368), (1792, 45345), (1920, 42322), (2240, 36276), (2688, 30230), (3023, 26880), (3360, 24184), (3840, 21161), (4480, 18138), (5376, 15115), (6046, 13440), (6720, 12092), (8960, 9069)]